Electric fuse.



No. 640,00]. Patented Dec. 26, I899.

' I. KITSEE.

ELECTRIC FUSE.

(Application filed June 26, 1899.)

' (No Modei.)

WITNESSES: I g )N VENTOR XMXKQ W w 7 m: NORRIS Farms co. vuowoumo.WASMINGTQN, n. c.

UNITED STATES PATENT OFFICE.

ISIDOR KITSEE, OF PHILADELPHIA, PENNSYLVANIA.

ELECTRIC FUSE.

SPECIFICATION forming part of Letters Patent No. 640,001, dated December26, 1899.

Application filed June 26, 1899. Serial No. 721,938. (No model.)

To all whmn it may concern.-

Be it known that I, ISIDOR Krrsnn, of the city and county ofPhiladelphia, State of Pennsylvania,have invented a new and usefulImprovement in Electric Fuses, of which the following is aspecification.

My invention relates to an improvement in electric fuses.

The object of my invention is to produce an efficient and compact deviceuseful for single or magazine fuses.

In all devices for fuses of to-day the terminals of the circuits to befused are normally secured to the fuse-block at a greater or lesser t 5distance from each other and the intervening space spanned by theconductor designed to fuse or break if a larger current than desired isflowing over the circuit.

In my invention the terminals of the circuit to be provided with fuseare normally kept together and separated or held apart by non-conductingmaterial if it is desired that the path of the current shall be onlythrough the fuse-wire. This arrangement is advan- 5 tageous in single,but more so in magazine fuse devices.

Referring to the drawings, Figure 1 is a diagram illustrating several ofthese fuses in a series. Fig. 2 is a side elevation, partially insection.

A is the base, of non-conducting material, preferably porcelain.

a a are conducting spring-plates secured to the plate or base A by thescrew Z).

b are connecting-screws for the purpose of connecting one pair ofsprings to the next following.

F is the fuse proper, G the circuitavires, and D the non-conductingblocks.

The modus operomcli is as follows Normally the conducting-springs b b ofeach separate device press against each other, and the path of thecurrent is therefore from the circuitwire G through the springs 19, andin very small proportion to the fuse F; but if it is desired to fuse thecircuit then all that is necessary is insert the non-conducting block Dbetween the pair of spring-plates I) Z).

The advantages of this arrangement are obvious. First of all, if thefuse F of the first device is blown all that is necessary is to take thenon-conducting block or separator from this device and insert it intothe second de vice, and, second, if it is desired to fuse currents ofhigh voltage the spring-plates of two or more of these devices can beseparted at one and the same time by the non-conducting blocks orseparators to increase the gap if the fuse is blown.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In electricity a magazine fuse-block consisting of the base proper, aseries of springcontacts mounted upon a common base and in electricalconnection with each other, each pairof spring-contacts being providedwith a fuse-wire, means to connect the terminals of an electric circuitto said block and means for separating one or the other of said pairs ofspring-contacts.

2. In an electric magazine fuse device, a series of pairs ofspring-contacts, normally in electrical connection with each other andpro vided each with a fuse, in combination with a non-conductingseparatordesigned to separate one or the other of said spring-contacts.

3. An electric fuse consisting of conductingsprings normally inelectrical contact with each other, the fuse proper connected in mul- 8otiple arc to said contact-springs, and a nonconducting wedge keepingsaid conductingsprings out of contact from each other.

In testimony whereof I sign my name, in the presence of two subscribingwitnesses, this 12th day of May, A. D. 1899.

ISIDOR KITSEE.

\Vitnesses:

E. R. STIELEY, WALLAon B. Ennnrnen.

